Home / 13,425.60-18,605.82-13,237.68

Finding the Fourth Proportional to 13,425.60, 18,605.82 and 13,237.68

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Solution

The fourth proportional to 13,425.60, 18,605.82 and 13,237.68 is: 18,345.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.60 : 18,605.82 = 13,237.68 : x
  2. Step 2: Convert to fraction form
    13,425.60/18,605.82 = 13,237.68/x
  3. Step 3: Cross multiply
    13,425.60x = 18,605.82 × 13,237.68
  4. Step 4: Simplify right side
    13,425.60x = 246,297,891.30
  5. Step 5: Solve for x
    x = 246,297,891.30/13,425.60
  6. Step 6: Final answer
    x = 18,345.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.